Padlock.



11. R. TOWNB.

PADLOGK.

APPLICATION TILED mm 10, 1908.

Patented May 4, 1909.

l/VVENTOR 7' Allamey rnvrrnn sra'rns PATENT onnrnn HENRY R. TOWNE, OFNEW YORK, N. Y., ASSIGNOR TO THE YALE & TOWNE MANUFACTURING COMPANY, OFSTAMFORD, CONNECTICUT.

PADLOCK.

Specification of Letters Patent.

Patented May 4, 1909.

Application filed June 10, 1908. Serial No. 437,759.

To all whom it may concern:

Be it known that I, HENRY R. TowNE, of New York, in the county of NewYork and State of New York, have invented certain new and usefulImprovements in Padlocks; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to an improvement in padlocks and the method ofmaking same, and it consists in the parts and combination of parts, andin the method of constructing and securing the parts together, as willbe more fully explained and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view in side elevation of myimproved lock case. Fig. 2 is an end view of same. Fig. 3 is a view inside elevation of the body of the case. Fig. 4 is a view in elevation ofsame. Fig. 5 is a view in section on the line :cx of Fig. 3. Figs. 6 and7 are views of the inner ring. Fig. 8 is a view of the blank from whichthe outer ring is formed. Fig. 9 is a view of one of the face latesshowing one ear cupped and the other in its form before cupping. Fig. 10is a view in edge elevation of same, and Figs. 11 and 12 are views ofmodified form of lock case.

The body of the lock is composed of an inner ring 1 provided with holes2 and 3, and an outer ring 4 secured to the inner ring by rivets 5. Theblank from which the outer ring is formed, is provided adjacent its endswith the slots 6 one of which registers with the slot 2 in the innerring 1 and the other with slot 3 in said ring This outer ring 4 is madeof any suitable ductile metal, and is .wider than the inner ring 1 asshown in dotted lines in Fig. 4, so that when the two rings areassembled, the inner ring will be central within the outer ring, withthe latter projecting at both sides.

The outer ring 4 is cut away adjacent to its ends to form the roundedears 7 and 8 bent outwardly at right angles to the ring, and erforatedto receive the pivot pin of the shac 1e 9, while the ears 8 form housingor guides between which the free end of shackle enters the lock casing.

The face plates 10 of the lock case are preferably concavo-convex andcircular except for the projecting cars 11 and 12 which latter conformin position to the ears 7 and 8 on the ring 4, and cover and conceal thesame when the parts are assembled as shown in Figs. 1 and 2. The ears onthe face plates 10, are, when formed, of the shape shown at 11, afterwhich the outer edges are turned as shown at 12 forming flanges whichoverlap the outer ring and house the ears 7 and 8, and conceal the pinon which the shackle 9 is mounted.

The face plates 10, are of a size and shape to enter the outer ring 4,and rest on the seats formed therein by the edges of the inner ring 1,the ears 11 and 12 entering the slots formed by cutting out the ears 7and 8.

One face plate 10 is thus assembled and permanently secured in place byspinning or otherwise turning the overhanging edge of outer ring 4 overthe edge of said face plate. The lock mechanism is inserted and securedin place after which the other face plate is inserted and permanentlyfastened in place by spinning or otherwise turning the overlapping edgeof ring 4 down onto the face plate. After the parts have been thusassembled and secured it will be impossible to get at the lock mechanismor the pivot pin supporting the shackle without destroying the lock.

The key opening for the lo ck may be through one face plate or throughthe'rings in the usual manner.

In the construction shown in Figs. 11 and 12, the inner ring 1 and outerring 4 are made seamless, the inner ring forming the shoulders againstwhich the edges of the face plate 10 rest. In this modification the earson the outer ring, and the ears on the'face plates of the constructiondisclosed in Figs.

1 to 10 inclusive are omitted. In other respects the constructions arethe same and the face plates are secured in place by spinning orotherwise turning the overlapping edge of the outer ring down out of theface plate.

The rings constituting the body of the lock may be formed by any of thefamiliar methods, as for example, from a flat annulus, punched fromsheet metal and then converted by a cupping process into the desiredform, or by punching a strip from sheet metal bending it into the formof a ring and securing its ends together.

It is evident that many slight changes might be resorted to in therelative arrangement of parts shown and described Without departing fromthe spirit and scope of my invention hence I would have it understoodthat I do not wish to confine r vself to the exact construction andarrangement of parts shown and described, but,

Having fully described inv invention whet I claim new and desire tosecure by Letters Patent is 1. A loci: case comprisii ductile metal aninner ring the outer rin 1nd face pls edges on the inner ring nd tenedin place by the overlspp the outer ring.

t l la (Me coniprisii I 4'. n rec an outer rinx" ductile metal, an ofless width t the outer rin the suit rings having o peni for the ends ofthe shackle, and face pl seated at their edfles on the inner rinceiulpermanently fastened in place by the overapping edges of the outer ring.3 A look ease coinprisn V ductile inetel haviv outwardl ears, an innerri' of less vidth than the outer rins" and ecured to the latter, andface 'UOSitlOil to plates having ears confornni 1 1n the ears on. thering, me said face seated at their 0 es on the inner aer nanentlyfastened in place by leoping edges of the out r ductile iill j.

A lock case coinpris U an outer rin of ductile metal hev two pairs ofoutwa projecting; ears, one pair forming; beari' the shackle pivot andthe other pair a guide or housing for the free end of the shackle, innerring of less width than the outer rill; and face plates having flangedears conforming to the ears on the outer ring, the said face '1 up; and

pro ecting being permanently secured against the of the inner ring bythe overlapping of the outer ring.

5. A. look case comprising an inner ring an outer ring wider than theinner ring and riveted thereto, the outer ring provided with a pair ofperforated ears bent outwardly, and face plates having flanged earsadapted to receive and cover the ears on the outer ring, the said fr ceplates resting; on the edges of the inner rin and hold in place by theturned edges of the outer ring.

6. A look case comprising a ring of ductile metal having outwerdlyprojecting ears, and internal annular its, and face plates having earsconforming in position to the ears on the rise the said face platesbeing; seated. at their and permanently edges on the annular sea-tsestened in place by the overlapping edges of the ring.

'7. lock case comprising a ring: of ductile nietel having two pairs ofoutwardly projecting; ears, one pair forming bearings for the l shacklepivot and the other pair a guide or housing for the free end of theshackle, the said ring being also provided with two in- 1 -isl annularseats, and face plates having flanged ears conforming to the ears on theouter ring, the said plates being permanently secured against the seatswithin the outer ring by the overlapping edges of said ring.

in testimonywhereof, I have signed this specification in the presence oftwo subscribing witnesses.

HENRY R. TOWNE. l i' itnesses F. C. minus, W. l. BONBRIGHT.

